I was lookin to get a new a1ir filter for my s70 glt to help with gas milage and the such. I had also heard that it might add some 10 horses to my power.<p>what would be the best choice for an air filter if im looking for good performance
K&N drop-in panel filter is probably what you heard the hype about (without all of the exhaust upgrades), but like JRL mentions, only 1 or 2 HP at the most. Still a good deal with these as you can clean them and re-use them. However, it's very important that when you do clean and re-use, you follow all directions for cleaning and re-oiling correctly. Do a google search for them and you should find some good deals on them. Expect to pay in the mid to high $30's for one.